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Finding the Fourth Proportional to 135,654.80, 203,424.60 and 65,555.60

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Solution

The fourth proportional to 135,654.80, 203,424.60 and 65,555.60 is: 98,305.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,654.80 : 203,424.60 = 65,555.60 : x
  2. Step 2: Convert to fraction form
    135,654.80/203,424.60 = 65,555.60/x
  3. Step 3: Cross multiply
    135,654.80x = 203,424.60 × 65,555.60
  4. Step 4: Simplify right side
    135,654.80x = 13,335,621,707.76
  5. Step 5: Solve for x
    x = 13,335,621,707.76/135,654.80
  6. Step 6: Final answer
    x = 98,305.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.